Section IX / Phase Monitor - Troubleshooting - Page 17
Before installing and using your KwiKool Portable Cooling
System, read this manual carefully for instructions and proper
usage and all safeguards.
This manual should be retained for future reference.
I / Unit Components
5-Ton Model
Page 3
12-Ton Model
ETL LISTED CONFORMS TO ANSI/UL1995
32.00
2
64.00
9
1
61.50
5
6
8
10 (typ) 4
Fork Pockets
3
7
4
KPO12
1 Cold Air Return6Control Panel Access
2 Cold Air Supply7Condensate Nipple
3 Condenser Air Inlet8Breaker Access
4 Condenser Air Outlet9Access Door
5 Electrical panel10 Camlok Connections
CERTIFIED TO CAN/CSA 22.2 NO 235
Page 4
II / Assembly
Connecting the Casters - Lift the unit carefully with a forklift using the built in fork
A.
pockets; DO NOT TILT the unit to bolt the casters to the base. Use all bolts and nuts
included, 4 for each caster and tighten well.
B.
Install Flanges - All flanges are pre-drilled and measured to fit on your KPO. Line up
the holes in the flanges to the threaded female insert on the cabinet and install included
fasteners, tighten well. Loose flanges will leak air and can diminish performance.
Installation Site - Preview your installation site, DO NOT place the KPO in the space
C.
that you are cooling. Your KPO is designed to be placed outside the conditioned space
and ducted in. Before moving your KPO into place verity the following. The direction you
would like the supply and return air to go (cooling), the direction you would like the hot air
exhaust to go (heat removal), where will the condenser make-up air coming form, where
is your power supply located and where is the condensate water pumping too? Position
the unit based on these guidelines for best results. NOTE: Leave at least 5’ of space
open around the make-up air inlets for the condenser to ensure proper operation.
III / Power Connections
Verify the source power, phase and breaker size is compatible with the units serial plate
information, if you are not sure contact a licensed electrician. The KPO 5-ton comes from
the factory with an 8’ power cable sized to fit the electrical specifications of the units’
electrical requirement and has no male receptacle attached. The KPO 12-ton comes without
a power cable and has 4 male cam lock connectors ready to receive the corresponding
female cam locks, the female cam locks, or complete cord line set can be purchased
separately with the proper cable size attached from the factory in various lengths. Users of
208/320 volt units will be required to set a switch located in the units’ control compartment
to select incoming voltage: the default selection from the factory is 208 volt. 230 volt
requires the switch to be changed.
IV / Operational Safeguards
Read the following safeguards carefully before installing your KPO KwiKool:
Do not operate or install your KwiKool unit in a potentially explosive, combustible, or
A.
corrosive gas atmosphere.
Keep your KwiKool system away from flammable materials and open flame.
B.
C.
To avoid electrical shock keep your KwiKool system away from direct contacts with water
and any liquids. Do not touch your system with wet hands.
D.
To insure your KwiKool system is stable, the ground on which the system is to be placed
should be level, free of vibration and strong enough to support the weight of your
KwiKool model.
E.
Do not move the system while it is operating. Before moving the system, first turn to
OFF then unplug the system from the power source. Then unlock the casters.
Page 5
Do not tilt or overturn your unit, since this could damage the compressor.
F.
Do not place objects on top of your unit.
G.
Do not insert your hand or any other object into the cold-air supply chutes.
H.
Do not operate your KwiKool system with its service doors open.
I.
If your KwiKool system makes abnormal noises or vibrations, call KwiKool at:
J.
1-800-594-5665.
V / Installation
A.
Install Condensate Line - The KPO series comes equipped with a high lift condensate pump, the connection is a 1/4” outer diameter barbed fitting located on the left
side upper portion of the condenser inlet on the 12-ton models as you are facing the
control panel and next to the power cable connection to the cabinet on the 5-ton
models. It is important to connect the condensate line prior to hooking up the electrical
power as the condensate pump is live when power is engaged. Collected water in the
pumps reservoir could be ejected when powered up.
B.
Install Cold-Air Supply Flex Duct - The KPO line requires a duct to direct the
cooling into the conditioned space, this is done with a 12” diameter duct. As you face
the unit opposite the control end, the supply is on your right side. Clamp supply ducting
onto the 12” flange(s), and route the duct to your desired location. The supply air
works best directed to the inlets of your equipment or directly on the area to be cooled.
C.
Install Cold-Air Return Flex Duct - Your KPO portable air conditioner works at its
best when the return air return is directly in the area of highest heat load, this placement allows the unit to return the heat load directly to the evaporator and not to linger
in the conditioned space. This is also done with 12” diameter duct. As you face the unit
opposite the control end, the return is on your left side. Clamp return ducting onto the
12” flange(s), and route the duct to your desired location. NOTE: The return air duct is
pulling in air and can try to collapse while operating, avoid this condition by pulling
all of the slack out of the duct and anchoring it to a fixed object. Duct collapse is the
number one cause of evaporator coil freeze or low performance. *NOTE: KPO
models utilize high static blowers. The KPO systems must have a minimum of 25’
ducting for each inlet and outlet. KPO 12-ton must have 100 total feet of duct
(minimum 2 ducts). KPO 5-ton must have 50’ of total ducting (minimum 1 duct). For
example if using a KPO 12-ton you need 100’ of duct. You can use 4-25’ pieces on
any outlet. If you are not sure about your application, call us at: 1-800-KWIKOOL.
**NOTE: Customers using this unit only to blow cold air and that are not trying to
cool a space may not need to connect the return air duct. However the KPO line
requires a minimum amount of duct to operate. If you are operating this unit with no
ducting, you will need to damper the return air by at least 50%. Allowing the KPO to
operate without duct or without dampening the return air could cause condensate
water leakage, diminished temperature difference, and/or evaporator motor malfunction.
Page 6
Install Flex Duct (hot-air discharge) - You will need to direct the hot air discharge
D.
away from your conditioned space and away from the condenser air intakes. This is
especially true when the KPO is used in a confined space or an indoor closed space.
This is completed with a 20“ diameter duct for the 12-ton and a 12” diameter duct for
the 5-ton. Clamp the duct onto the flange on the control side of the KPO and route to
your desired location (Visit www.kwikool.com for specific model specifications on
maximum duct lenght). NOTE:It may not be necessary to connect a hot-air discharge
duct if you are using the KPO outdoors and ducting the cooling into a space. When
used indoors or in a confined space and the hot air exhaust is ducted out, the KPO
must have a supply of make-up air for the condenser. The condenser make-up air
cannot be ducted into the KPO, and has to come from the surrounding space. Make
sure you have adequate fresh air supply or the unit will shut down to protect the
compressor from catastrophic failure.
E.
Apply Electrical Power - When power is supplied to the unit, the controller will
become operational. KPO 12-ton users will have to place the units built in breaker to the
ON position to engage the controller. For units equipped with a Phase Monitor (all 12-ton
KPOs and KPO 5-tons 3 Phase models), the unit will display a red light alarm for 5
seconds, then clear when the microprocessor in the Phase Monitor “boots up”, this is a
normal condition. For units with a Phase Monitor, the most common reason the fault light
will not clear on initial start up is incorrect phasing. This condition is easily corrected. If
the red light fails to clear in 5 seconds a qualified personal may turn the source power off
and exchange any of the 3 line voltage wires with the other. DO NOT SWAP THE GREEN WIRE. Power the unit back up and wait for the fault red light to clear for 5
seconds and then proceed to the next step. If the fault light fails to clear after changing
the phase, turn the power off at the source, return the wires back to the original
configuration and refer to the Troubleshooting Guide (section IX) of this manual.
F.
Set your Controller - The controller of your KPO is factory set to start cooling above
72 degrees F and will be displaying the current room temperature; it is in cooling mode
and is set to come on within a 2 degrees temperature differential. If it is necessary to
alter these settings, the set routine is as follows:
a.
Press set. F is displayed, use the up or down arrow to choose Celsius and
Fahrenheit, the letter C is then displayed.
Press set again, the current set point is displayed, use the up or down arrow to
b.
change the temperature that the unit will cycle on or off at. NOTE: Lowering or
raising this temperature setting will not change the actual temperature of the supply
air, for best results always set the unit to a realistic temperature that it can maintain.
Press set again, the number 2 is displayed, this is the temperature differential,
c.
changing this setting up or down is not recommended and only varies the range that
the temperature must be when cycling, and under some conditions may not allow the
unit to cycle on at all if adjusted out of the factory range.
Pressing set again, and C1 displays do not adjust this setting, this is the mode
d.
setting and moving the control from this setting will place the unit in H1 which is
heat mode and not the abbreviation for the word HIGH and not used or available
in KPO models. Your KPO will not operate in this mode. H1 DOES NOT SIGNIFY
HI..IT IS HEAT 1 - THIS MUST BE SET TO C1.
Page 7
e.
Press set again, the unit displays the room temperature. This is the default display
and the control will always reset to this display automatically.
This completes the “set” cycle routine.
Turn ON the System - Using the ON/OFF selector switch select to ON. The
G.
evaporator fan starts and a 3 minute delay activates. This prevents the compressor
short cycling. After the time delay reaches 3 minutes the compressor starts and cooling
will begin. After the system has built up enough pressure the hot air exhaust fan will
start to ramp up, it is normal for this fan to delay in starting and also normal for it to
slow down and speed up downing the operating process. NOTE: The evaporator fan is
on continuously when the selector switch is in the ON position.
H.
Cycling Off - After the system has reached its set point it will automatically cycle off
or you may choose to turn the system OFF by moving the selector switch to the OFF
position. If the unit cycles off or is turned off, the 3 minutes time delay will always
activate when the system calls for cooling. When cycling off by making the set point,
the evaporator fan stays on and cooling will begin automatically when the temperature
rises above the set point. Turning the system OFF manually will turn the evaporator fan
off and not allow the system to restart until the selector switch is set to ON and the
return air temperature is above the set point.
Installation Site - Preview your installation site, DO NOT place the KPO in the
I.
space that you are cooling. Your KPO is designed to be placed outside the conditioned
space and ducted in. Before moving your KPO into place verity the following. The
direction you would like the supply and return air to go (cooling), the direction you
would like the hot air exhaust to go (heat removal), where will the condenser make-up
air coming form, where is your power supply located and where is the condensate
water pumping too? Position the unit based on these guidelines for best results. NOTE:
Leave at least 5’ of space open around the make-up air inlets for the condenser to
ensure proper operation.
VI / Built in Safeguards
Time Delay - Protects your KwiKool from potential damage by delaying the compres-
A.
sor from starting before the pressures in the mechanical system equalizes. Always
activates when your KwiKool cycles off, is turned off, or power is lost and then
restored.
High Pressure Alarm - Protects your KwiKool from potential damage to the
B.
mechanical system by shutting down and alerting operators of a condition such as
stopped or slowed air flow over the condenser coil, make-up air temperature above
operating range or mechanical failure. Your KwiKool will sound an audio alarm only with
no fault light. To resume operation the system requires a manual reset after corrective
action is taken, the reset switch is located in the service door access on the compressor discharge line. Push in to reset, if activated you will feel a click.
C.
Low Pressure Alarm - Protects your KwiKool from potential damage to the
mechanical system by shutting down and alerting operators of the condition. This safety
activates when pressure below 20 PSI are detected in the mechanical system. Your unit
will sound an audible alarm only with no fault light. Call KwiKool at 1-800-594-5665 if
the alarm is present on start up. Automatic reset upon correction of the low pressure
condition.
Page 8
D.
Automatic Restart - In the event of a power loss your KwiKool resumes operation
when the power is restored if in the ON position. All operational functions are
preserved in the memory of the control.
Condensate Pump & High Level Alarm - KPO systems are factory equipped
E.
with an internal high lift condensate pump. KwiKool condensate pumps are able to
pump the condensation collected in the reservoir of the pump to a drain or other area
approved for the discharge water by attaching 1/4” I.D. tubing to the 1/4” O.D. barbed
condensate outlet, located as you are facing the control on the left upper portion of the
condenser inlet on the 12-ton models and next to the power cable connection to the
cabinet on 5-ton models. KwiKool condensate pumps are able to pump 20’ vertical and
are equipped with a pump safety cut-off that prevents accidental water overflow by
shutting your unit down and alerting operators with an audible alarm only with a no fault
light. Call KwiKool at 1-800-594-5665 if this alarm is present on start up. The most
common reason for this alarm to activate during operation is restricted water flow
through the discharge tubing or excessive discharge line connected to the system.
Automatic reset upon correction of the condensate flow.
F.
Power/Phase Monitor - Standard on all 3-Phase KPO models. The power monitor
samples the power supply and shuts down and alerts operators with an alarm and red
fault light displays in the event of low or high voltage, incorrect voltage, incorrect
phasing or motor fault. The monitor is factory set to reset automatically upon adjustment of the monitor or correction of the issue indicated on the monitor. The monitor is
located in the electrical control panel of your KwiKool unit and displays the reason for
activation. See the Troubleshooting Guide (section X) in this manual for adjustment
detail if your KwiKool Phase Monitor is alarming and displaying fault lights.
G.
VFD (Variable Frequency Drive) - Used on KPO systems to optimize the
operation of the condenser fan in low ambient conditions by slowing down and speeding up the condenser blower. This helps to maintain the best pressure needed to
operate in your current environment. Your VFD is located in the cold-air return air
compartment for the 12-Ton and in the condenser access compartment on the 5-Ton
and displays the current operating frequency or any error message needed for fault
diagnosis.
VII / Application Requirements
A.
Air Temperature Requirements - The environmental requirements of your
KwiKool unit at the installation site are 60 to 110 degrees F for the condenser make-up
air located on each side of the unit. If the unit is operated in an environment above
110 F the high pressure switch may trip stopping the unit’s compressor, or you will
notice diminished performance. The High Pressure Switch is manually reset, the reset
switch is located in the service compartment, Reset is accomplished by pressing the
button on the switch located on the compressor discharge line. If the switch has
tripped, you will feel a distinct click upon reset. Standard KwiKool KPO models are not designed to operate at temperatures below 60 degrees F. on the cooling side.
Temperatures below 60 degrees F will cause evaporator coil freezing.
B.
Capacity & Temperature Settings - Sizing of our units are based on matching
capacity to a specific heat load while maintaining a 72 degree F temperature. In order to
reach temperatures below 72 degrees F, the unit must have extra capacity. Therefore,
we recommend that you do not set the temperature set point below 72 degrees F,
Page 9
unless you have excess cooling capacity beyond your heat load, since this may
cause the unit’s evaporator coil to freeze up.
C.
Positioning of Unit - The unit should be positioned as close to the heat generating
equipment as possible with the return air duct directly in the area of highest heat load.
Do not block the return air duct of the unit, since this will cause low performance and or
evaporator coil freezing. Place your KwiKool system on a level surface to ensure proper
condensate water flow and be sure the surface is able to support the weight of your
KwiKool.
VIII / Maintenance
A.
Air Filters - Your KwiKool comes from the factory with filters installed on the
evaporator inlet to prevent dust and debris from entering the system and circulating in
the conditioned space, factory installed filters are a disposable type and must be
periodically checked and replaced based on the air quality of your conditioned space.
Failure to maintain the filters will cause restricted air flow and low overall unit performance. The air filters are located in the supply air return; remove the return air panel by
turning the slotted lock fastener to the horizontal position and lift up panel to replace
the filters.
B.
Condenser Drive Belt (KPO 12-ton only) - Your KwiKool moves air over the
condenser coil to remove heat from the conditioned space by way of a motor that
drives a blower wheel. This wheel turns by way of a pulley and belt system.
Inspect/adjust these belts every 60 days of operation, replace as needed. Failure to
maintain the drive belts will cause low performance, high pressure trip or in extreme
cases damage to the blower/motor in event of a belt breaking. Located in the
condenser access compartment on the control end of your KPO, release the 2 slotted
fasteners to give you access to the condenser belts and motor. NOTE: Adjust the
tension on the belts by adjusting the mother base. DO NOT ADJUST THE DRIVE
PULLEY.
C.
Service Ports - Located in the service access door on the left side as you face the
control. This gives service personal a connection point for servicing gauges to monitor
the operating pressures of your KwiKool.
Sight Glass- Located in the condenser access compartment on the control side of
D.
your KPO, allows operators and service personal to view the condition of the refrigerant
returning to the evaporator coil. Used as a diagnostic tool by qualified personal.
IX / Utilizing your KwiKool System
In contrast to conventional air conditioners, which circulate air conditioning capacity evenly
to an entire floor, KwiKool systems are generally used for cooling an area with a high
concentration of heat load, usually from electrical or computer equipment. Understanding
the capabilities of your KwiKool can help you avoid problems. Your KwiKool system offers
an effective affordable solution for many applications. It can also provide spot cooling for
workers or process cooling within a large space without the use of condenser ducting,
such as a warehouse factory, or production areas. If the system is used in this manner,
Page 10
the cold air supply must be within 5 feet of the person or equipment being cooled, since
the hot ambient air will mix with the cool air very quickly. Your KwiKool system is specifically designed to adapt to today’s high tech environments such as telecommunication or
computer rooms and is equipped with the necessary controls to maintain those special
environments. Call your nearest KwiKool Distributor or 1-800-594-5665 for help or for
questions about other applications.
X / Troubleshooting Guide
FaultPossible CausePossible Solution
Red alarm light and audible
alarm fails to clear on start
up, Phase/Power Monitor
and displays “Front Fault
Reversal”
Red alarm light and audible
alarm fails to clear on start
up, Phase/Power Monitor
and displays “Front Under
Voltage”
Red alarm light and audible
alarm fails to clear on start
up, Phase/Power Monitor
displays “Front Over
Voltage”
System sounds audible
alarm only.
System starts up but is not
cooling.
Phase/Power Monitor
detects phasing issue on 3
phase system or improper
power incoming.
Phase Monitor detects
voltage lower than factory
setting.
Phase/Power Monitor
detects voltage higher than
factory setting.
A condition exists with the
mechanical system involving
pressure or condensate
flow.
System is in time out,
control is set above room
temperature or control is
adjusted out of operating
parameters.
Turn OFF power & then swap
any line voltage wire with
one of the other 2. Reapply
power, verify incoming
power.
Check system for under
voltage cause. Increase
percentage of under voltage
setting if neccessary.
Check system for under
voltage cause. Increase
percentage of under voltage
setting if neccessary.
See Advanced Troubleshooting Guide (section XI), or
call: 1-800-KwiKool
Wait 3 minutes, review
section V/F. Set up control.
System starts up but goes
into visual and audible alarm
when the compressor
starts.
Phase/Power Monitor
detects voltage drop.
Observe the Phase/Power
Monitor on start for fault
lights and adjust accordingly,
verify incoming power. If no
fault light is present see
Advanced Troubleshooting
Guide (section XI).
Page 11
FaultPossible CausePossible Solution
Power is supplied but
control is blank.
System starts up and cools
but hot air exhaust fan
speeds up and slows down.
Cool air flow is limited,
water is dripping from the
front of the system.
Low Voltage circuit is not
engaged.
Normal operating condition
especially in low temperatures.
Supply or return duct is
collapsed, blocked or not
installed, filters need to be
replaced and/or the
evaporator coil is freezing as
a result of the above.
Condensate is not pumping.Water is below pumping
level.
On 12-ton models turn on
built in breaker, all models
verify incoming power to
contactor, reset switch on
low voltage transformer.
No action required, see
section VI/G.
Verify that supply and return
ducts are installed to
specifications, remove or
add duct as needed, check
air filter for blockage.
Restart when thawed.
Reservoir fills, Check for line
crimping.
Page 12
XI / Advanced Troubleshooting Guide
FaultPossible Cause
System sounds audible
alarm only, display.
Mechanical system has
detected high water level in
the condensate pump.
Mechanical system has
detected high pressure.
Mechanical system has
detected low pressure.
Possible Solution
Inspect condensate pump for
overflow and proper operation call KwiKool at: 1-800594-5665, check condensate
line for clog or crimping.
Resets automatically upon
correction.
Correct condition with air
flow in or out of the
condenser, inspect/replace
condenser drive belts, check
condenser motor for proper
operation, check condenser
drive (VFD) for trip, reset if
needed. The high pressure
switch requires manual
reset. The pressure switch
is located in the service
compartment on the
compressor discharge line.
Install service gauges to view
pressure readings below 20
PSI. Check for icing on the
evaporator coil or low return
air temperature. Resets
automatically upon correction.
KPO red fault light on
control panel is on. Phase
Monitor displays lock out.
“Back Fault” 2 red lights.
Chatter or hum is heard
from the control box while
unit is operating.
A fault has been detected
from one of the unit’s motors.
Incoming source power is
poor, low voltage component
is faulty
Inspect motor components
for faulty or loose connections.
This is not adjustable through
the Phase Monitor, check for
proper voltage switch
selection on 208/230 volt
units and correct incoming
power.
Page 13
FaultPossible CausePossible Solution
Evaporator coil is freezing.Low or restricted air flow.
Undersized capacity, unit
constantly on, unable to
achieve set point. Low
return air temperature out of
factory specifications.
Service door open or off,
mechanical system malfunction.
Control Displays E1Appears when up or down
key is pressed when not in
programming mode.
Control displays E2Appears when control
settings are not properly
stored in memory.
Control displays EPAppears when the probe is
open, shorted or sensing a
temperature that is out of
range.
Control displays EEAppears if the EEPROM
data has been corrupted.
Review duct engineering,
direct return air duct to area
of highest heat load,
replace air filters, adjust set
point to allow unit to cycle,
add more KwiKool units or
capacity, close service
compartment door. Install
service gauges to view
pressures.
Operate in program mode.
If E1 appears when no keys
are pressed.
Check all settings and
correct if necessary.
Check to see if the sensed
temperature is out of range.
If not, check for probe
damage by comparing it to
a known ambient temperature.
Control must be replaced.
Call KwiKool at:
1-800-594-5665.
Control displays CLAppears if calibration mode
has been entered.
Hot air exhaust fan
(condenser fan) stops and
the High Pressure Switch
trips while the compressor is
operating.
Condenser drive has
detected a fault with the
incoming electrical power or
is not receiving an operating
signal.
Remove power to the
control for at least 5
seconds. Reapply power
and if CL message still
appears, control must be
replaced. Call us at
1-800-KwiKool
Check condenser motor
drive (VFD) for trip, reset if
needed. Write down the
displayed fault code on the
drive and call KwiKool at
1-800-594-5665 if the
problem persist.
Page 14
XII / Phase Monitor
The Phase Monitor is factory installed and is located inside the control Box.
The Phase Monitor can be accessed through the right side service
door as you face the unit and removing the cover to the control box.
ONLY ADJUST ARROWS/BUTTONS WHEN MONITOR IS IN FAULT MODE
ADJUSTING AT ANY OTHER TIME WILL DAMAGE SYSTEM AND VOID WARRANTY
LCD Screen displays Voltage.
When in Alarm LCD Screen will display Fault Title
(see page 16 for fault/problem/corrective action)
If there is a Problem the LCD Screen will have a Readout
(see page 17 for problem/readout/status/corrective action)
Lights up when phase monitor is 1st set-up
Lights up red when phase monitor is in fault
Indication Lights - Green
(shows phase monitor is working)
Page 15
XIII / Phase Monitor - Fault Conditions
FAULT TITLEPROBLEMCORRECTIVE ACTION
Back Phase
Loss
Not all three of the
phases on that load
side are present
Call factory at: 1-800-KWIKOOL (800-594-5665)
Back Phase
Rev
Back Phase
Unbalance
Front Over
Voltage
Front Phase
Loss
Front Phase
Reversal
Front Phase
Unbalance
Loads 1, 2, or 3 are
not in sequence
(not 120 phase shifted)
A voltage unbalanced
between the three load
phases exceeds the
unbalanced setpoint
Average phase-phase
voltage exceeds the
maximum percentage
Not all three of the
phases on the line
side are present
Loads 1, 2, or 3 are
not in sequence
(not 120 phase shifted)
A voltage unbalance
between the three line
phases exceeds the
unbalance setpoint
Call factory at: 1-800-KWIKOOL (800-594-5665)
Call factory at: 1-800-KWIKOOL (800-594-5665)
1. Check system for over-voltage cause
2. Increase the percent over-voltage setting if necessary
3. Increase the fault interrogation time if necessary
1. Press and hold the READ button on the phase
monitor or use an AC voltmeter to carefully measure
all three phase-phase line voltages
Line 1 Line 2,
2. Repair the missing phase
1. Turn OFF all power
2. Swap any 2 phases on the load side of the Monitor
only (example: swap load 1 and load 2)
3. Re-apply power
1. Press the READ button to observe the present load
voltages. Check system for unbalanced cause
2. Increase the fault interrogation time if necessary
3. Increase the percent unbalance setting if necessary
Line 2 Line 3, Line 3 Line 1)
(example:
Front Under
Voltage
Average phasephase voltage is
below the minimum
percentage
1. Check system for under-voltage cause
2. Increase the percent under-voltage setting if
necessary
3. Increase the fault interrogation time if necessary
Page 16
IX / Phase Monitor - Troubleshooting
PROBLEM
Load will not
energize
Load will not
energize
Fault LED blinks
repeatedly while
load is energized
Load will not
de-energize
when control
voltage is OFF
Setup LED is on
while load is
being energized
LCD
ReadoutCORRECTIVE ACTION
Phase
Avgerage
Phase
Avgerage
Phase
Avgerage
Phase
Avgerage
Anything
other than
Phase
Avgerage
LCD
Status
All LEDs Off
Load LED Off,
Fault LED
Blinking
Fault LED
Blinking,
Load LED On
Load LED On,
Control LED Off
Setup LED on,
Load LED On
Confirm that the control input (terminals 1 & 3) is
properly connected and configured
Press FAULT once to observe the current fault;
correct the condition of the first fault that appears
(see FAULT Conditions, for a list of corrective
actions)
Indicates there are faults saved in the memory,
press FAULT rapidly to scroll through saved faults;
to clear the faults, press and hold FAULT for more
than 5 seconds
The control mode setting is OFF; press SETUP
to get the control mode.
Press to set the control mode ON
To exit the setup mode, press either READ
or FAULT
Load will not
energize
Load turns ON
and OFF
repeatedly
Reset
Readout is
Irrelevant
Fault LED
Blinking
Fault LED
Blinking
Unit in lockout; maximum number or retries in
manual reset mode has been reached; to reset
unit, press FAULT and hold for more than 5
seconds
Fix load side fault; press FAULT to observe
condition; the delay on break period may be too
short; press SETUP to enter the delay on
break mode;
press to lengthen the delay
Page 17
Revision 022117
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